Sheet material por innersoles



G. AfSPEAR.

SHEET MATERIAL FOR INNERSULES. APPLICATION FILED MAR. I0l 1911.

Patented Aug. 12, 1919.

Cunvussrllngmr Shading Tur or Asphnh Su'urued Een Canvuss, DmngorSheering i lnvencm George A.Spec1r yAys.

*UNITED sTATEs PATENT oEEic GEORGE A. SPEAE, or MEDEORD, MASSACHUSETTS,AssIGNoR, EY MESNE .assuma/tanins,` To THE ELINTKOTE'COMPANY, or BosToN,MAssAoHUsETTs,A CORPORATION or MASSACHUSETTS.

To all whom it may concern:

Be it known that I. GEORGE A. SPEAK, a citizen of the United States,residing at Medford, county of Middlesex, State of Massachusetts, haveinvented an Improvement in Sheet Materials for Innersoles, of which thefollowing description, in connection with the accompanying drawing. is aspecification, like characters on the drawing representing like parts.

This invention relates to the composition of a new material in sheetform for use in innersoles for shoes.

The material which is in sheet form is designed to be cut up intoinnersoles for slices either of the Mackay, standard screw or nail typeor of the Goodyear type. .In the former case the innersole and othersuperimposed parts of the shoe are united together by through andthrough stitches, by

' standard screws or by nails or pegs and the material is peculiarly1suited for this purpose. In the latter case the innersole and othersuperimposed parts of the shoe are united by stitching and for thispurpose the innersole is provided with a separate rib secured thereto bystitching or in any other suitable way.

The object of the invention is to produce a material which shall betough, flexible, substantially sweat/ and Waterproof, which shall not besubject to decay or deterioration, which shall secure the thread, nailsor pegs employedA in the manufacture of the shoes, which shall becapable of being made into a Goodyear innersole by the addition of asuitable rib, and which shall produce a cheap and satisfactoryinnersole.

The invention resides in a material in sheet form made up of a pluralityof sheets cemented together, the intermediate sheet being acompressedsheet of tar or asphalt saturated felt presenting acementitious water repellent surface and the outer or surface sheetswhich are cemented thereby to the intermediate sheet being of napped orWoven material. tion will appear more fully from the accomanyingdescription and drawings and will e particularly pointed out in theclaim.

In the drawings, Figure 1 is a top plan view of an inner- Specificationvof Letters Patent The nature of the inven-l SHEET MATERIAL FOR INNERSOLES.

sole of the Goodyear type embodying the invention;

Fig. 2 is a transverse cross section of the construction shown in Fig.l;

Fig. 3 is a plan view of an innersole of the Mackay type;

Fig. 4 is a transverse cross section of the construction shown in Fig.3.

The innersole material from which the innersoles illustrated are made isa Composite sheet material.

The inner sheet which may itself be made of one or more layers is acompressed sheet of tar or asphalt saturated felt. This material whichis the base of the innersole is made of rags, jute, paper, pulp or othersimilar material compressed between heated rolls and filled with anasphalt preparation at the same time and is generally known on themarket as tar or asphalt saturated felt.

The surface sheets of the innersole material are of a woven or closelyfelted fabric. These sheets give to the intermediate sheet thenecessary-strength and toughness and provide the necessary finishfor theexterior of the material.

In the construction shown in Figs. l'and 2 the inner sheet of compressedtar or asphalt saturated felt is shown as reinforced at the 4oppositesurfaces by sheets of canvas, drill- Patented Aug. 12,5i919. Applicationled March 10, 1917. Serial No. 153,805. 'Y

Goodyear innersoles which may be done by securing to the surface of theinnersole a rib l herein shown, for example, as a cord rigidly securedto the innersole in any well known and familiar 'manner such as bystitching.

In the construction shown in Figs. 3 and 4 the innersole material isfaced at one side with canvas, drilling yor sheeting and at the oppositeside with a closely felted or heavily napped fabric. This secures amaterial similar to that illustrated in Fig. 2 but with the additionthat the one surface covered' with the napped fabric is of such acharacter that it presents at the same time a soft and comfortablesurface to the foot of the wearer and renders unnecessary the process ofbeating in the st'tches When the innersoie is used, as in an innersoleof the Mackay 5 type, because the stitches sink into the napped surfaceof the material.

Having fully described my invention, What I claim as new and desire tosecure by Letters Patent is: y

10 Sheet material for innersoies for shoes composed of a compressedsheet of tar or asphalt saturated feit, a sheet of heavily napped fabriccemented to one surface or' said sheet of felt With the nap face out,and a sheet of woven Jfabric cemented to the 15 other surface of saidsheet of felt.

In testimony whereof I have signed my name to this specification.

GaaoRGfE A. SPEARI

